import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Register from '../components/Register.vue'
import Home from '../components/Home.vue'
Vue.use(VueRouter)

const routes = [
  //控制根路径展示
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/register',
    component: Register 
  },
  {
    path: '/home',
    component: Home
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

//挂载路由导航
router.beforeEach((to, from, next) => {
  if (to.path === '/login') return next();
  if(to.path === '/register') return next();
  const tokenStr = window.sessionStorage.getItem('loading')
  if (!tokenStr) return next('/login')
  next()
})



export default router
